Industrial pollution can be constituted-of-or-filled-with air.Logical formLearned from4 sentences. Pollution can be from vehicles.Logical formLearned from4 sentences. Pollution may pertain-to a sea.Logical formLearned from4 sentences. Pollution may be created by (automobile emissions).Logical formLearned from4 sentences. (Pollution permits) may be hand_outed to firms.Logical formLearned from4 sentences. A gross national product may include (air pollution).Logical formLearned from4 sentences. A cause can be constituted-of-or-filled-with indoor (air pollution).Logical formLearned from4 sentences. (Pollution records) may produce results.Logical formLearned from4 sentences. Causes can be attributable to (air pollution).Logical formLearned from4 sentences. An island may be threatened by pollution.Logical formLearned from4 sentences. Cars may add to pollution.Logical formLearned from4 sentences. Pollution may be caused by coal-fired (power plants).Logical formLearned from4 sentences. Percent may pertain-to an (air pollution).Logical formLearned from4 sentences. Initiatives can be on (air pollution).Logical formLearned from4 sentences. (Pollution records) may be took from an (ice core).Logical formLearned from4 sentences.